#include <iostream>
#include<vector>
#include<string.h>
#include<fstream>
using namespace std;
typedef struct student
{
	char name[10];
	int age;
	vector <int> grades;
}student_t;
void Nhap(student_t *st,int n);
void Xuat(student_t *st,int n);
void TimKiem(student_t *st,int n,int age);
void HoanVi(student_t &st,student_t &sv);
void SapXep(student_t *st,int n);
